2018 Porsche Panamera Problems

The main water pump on my 2018 Porsche Panamera 4S failed prematurely. This is not a simple external coolant leak; the internal seal failed, allowing pressurized engine coolant to migrate into the vehicle's vacuum system. The coolant traveled through the vacuum lines and contaminated the vacuum solenoids and change-over valves. This failure mode presents a significant safety hazard because the vacuum system controls critical engine components, including turbocharger wastegates and exhaust flaps. Contamination of these components can lead to sudden loss of power, "limp mode" activation while driving at highway speeds, or unexpected engine behavior, increasing the risk of a crash. Cross-Reference to Known Defects: This vehicle utilizes the EA839 V6 engine platform, which is shared with Volkswagen and Audi vehicles (specifically the Audi S4, S5, SQ5, and Q7). Audi and Volkswagen have already acknowledged this specific manufacturing defect in the class action settlement Fiscina v. Volkswagen Group of America, Inc. (Case No. 2:21-cv-11251). Under that settlement, Audi extended the warranty on this water pump to 10 years/80,000+ miles for the exact same failure mode (coolant migration into the vacuum system). Despite my vehicle using the same engine and suffering the exact same mechanical failure, Porsche refuses to offer coverage or acknowledge the defect. I am requesting an investigation into why Porsche models equipped with the defective EA839 engine are excluded from the safety remedies and warranty extensions provided to Audi owners.

The contact owns a 2018 Porsche Panamera. The contact stated that while driving approximately 70 MPH, the message "Engine Overheating - Park Vehicle" in red letters was displayed on the instrument cluster. The contact pulled over and turned off the vehicle. The contact stated that there was a burning odor inside the vehicle. The vehicle was towed to a local dealer, but was not diagnosed; however, the contact was advised by the dealer that the failure could be related to the coolant pump. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 70,000.

The main water pump on my 2018 Porsche Panamera 4S failed prematurely. This is not a simple external coolant leak; the internal seal failed, allowing pressurized engine coolant to migrate into the vehicle's vacuum system. The coolant traveled through the vacuum lines and contaminated the vacuum solenoids and change-over valves. This failure mode presents a significant safety hazard because the vacuum system controls critical engine components, including turbocharger wastegates and exhaust flaps. Contamination of these components can lead to sudden loss of power, "limp mode" activation while driving at highway speeds, or unexpected engine behavior, increasing the risk of a crash. Cross-Reference to Known Defects: This vehicle utilizes the EA839 V6 engine platform, which is shared with Volkswagen and Audi vehicles (specifically the Audi S4, S5, SQ5, and Q7). Audi and Volkswagen have already acknowledged this specific manufacturing defect in the class action settlement Fiscina v. Volkswagen Group of America, Inc. (Case No. 2:21-cv-11251). Under that settlement, Audi extended the warranty on this water pump to 10 years/80,000+ miles for the exact same failure mode (coolant migration into the vacuum system). Despite my vehicle using the same engine and suffering the exact same mechanical failure, Porsche refuses to offer coverage or acknowledge the defect. I am requesting an investigation into why Porsche models equipped with the defective EA839 engine are excluded from the safety remedies and warranty extensions provided to Audi owners.

On my 4th visit to the Porsche dealership and the problem is still not resolved. There are MANY references to the same problem online. The problem: error message on the dash stating REVERSE NOT AVAILABLE and car goes into 3RD gear only and stays there. Only final solution is new transmission which Porsche resists doing It has happened 6 times now. attaching a photo and I have many more of these from 2024

The main water pump on my 2018 Porsche Panamera 4S failed prematurely. This is not a simple external coolant leak; the internal seal failed, allowing pressurized engine coolant to migrate into the vehicle's vacuum system. The coolant traveled through the vacuum lines and contaminated the vacuum solenoids and change-over valves. This failure mode presents a significant safety hazard because the vacuum system controls critical engine components, including turbocharger wastegates and exhaust flaps. Contamination of these components can lead to sudden loss of power, "limp mode" activation while driving at highway speeds, or unexpected engine behavior, increasing the risk of a crash. Cross-Reference to Known Defects: This vehicle utilizes the EA839 V6 engine platform, which is shared with Volkswagen and Audi vehicles (specifically the Audi S4, S5, SQ5, and Q7). Audi and Volkswagen have already acknowledged this specific manufacturing defect in the class action settlement Fiscina v. Volkswagen Group of America, Inc. (Case No. 2:21-cv-11251). Under that settlement, Audi extended the warranty on this water pump to 10 years/80,000+ miles for the exact same failure mode (coolant migration into the vacuum system). Despite my vehicle using the same engine and suffering the exact same mechanical failure, Porsche refuses to offer coverage or acknowledge the defect. I am requesting an investigation into why Porsche models equipped with the defective EA839 engine are excluded from the safety remedies and warranty extensions provided to Audi owners.

The contact owns a 2018 Porsche Panamera. The contact received notification of the NHTSA Campaign Number: 23V033000 (Electrical System) however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue and advised the contact to park the vehicle outside the garage until parts became available. The contact had not experienced a failure. Parts distribution disconnect.

Porsche dashboard leather shrunk and pealing out. Vehicle will not deploy the airbags if in accident. It needs to be replaced. It is a common issue. It is a safety hazard.

The contact owned a 2018 Porsche Panamera. The contact stated that when he was parking the vehicle, as he had shifted from reverse (R) to drive (D) to straighten the vehicle in the parking spot, the vehicle had inadvertently accelerated at an unknown speed. The contact stated that the vehicle ran through an intersection and crashed into five parked vehicles. The contact stated that he had depressed the brake pedal and was not able to stop the vehicle. The contact stated that his vehicle was stopped by the last vehicle he had crashed into. The contact stated that the police had arrived and issued a report. The contact stated that the vehicle air bags had deployed and that he was transported to the hospital by ambulance. The contact stated that he had bruises on both his ankles and calves and that he had bruises on both wrists and hands. The contact stated that the driver's front fender, door, and quarter panel had been damaged by the crash. The contact stated that the driver's front wheel had sheared off the vehicle. The contact stated that the vehicle had been towed to an impound lot and his insurance provider had declared the vehicle a total loss. The manufacturer was not informed of the failure. The failure mileage was approximately 83,000.

The ride height sensor on the right front suspension is mounted to the upper control arm via a plastic bolt and bracket. This plastic mounting component failed under normal driving conditions. The failure caused the ride height sensor to malfunction, which directly affects the vehicle's air suspension system and its ability to maintain proper ride height and handling characteristics. When driving, I received multiple chassis height warning messages stating that the chassis was too high or too low or malfunctioning. The ride height sensor is a critical component of the Porsche Active Suspension Management (PASM) system. Its failure can result in: - Incorrect suspension height, affecting vehicle stability and handling - Suspension system faults that may trigger unexpected warning conditions while driving - Potential loss of driver control in the event of sudden sensor failure at highway speeds This failure is not isolated to my vehicle. A review of Porsche owner forums including Rennlist and 6SpeedOnline reveals similar plastic mount failures on the ride height sensor across multiple Porsche platforms, including the Cayenne, Macan, and Panamera. The fact that Porsche has since revised the replacement hardware from plastic to metal strongly implies the manufacturer is aware the original design was inadequate. However, no recall or Technical Service Bulletin has been issued to proactively notify owners or provide a remedy at no cost. When the plastic bolt and bracket failed on my vehicle, my dealership replaced it with the current Porsche-supplied metal replacement hardware because the plastic parts have been discontinued. However, the updated metal bolt and bracket are physically incompatible with the existing control arm, requiring the control arm to also be replaced. Owners who are unaware of this incompatibility may drive vehicles with an improperly secured or non-functional ride height sensor, increasing safety risk.